static void
draw_window_color( SaWManWindow *sawwin,
CardState *state,
DFBRegion *region,
bool alpha_channel,
bool right_eye )
{
SaWMan *sawman;
CoreWindow *window;
DFBSurfaceDrawingFlags flags = DSDRAW_NOFX;
DFBRectangle dst;
DFBRegion clip;
DFBRegion old_clip;
DFBColor color;
int offset;
sawman = sawwin->sawman;
window = sawwin->window;
dst = sawwin->dst;
D_MAGIC_ASSERT( sawman, SaWMan );
D_ASSERT( window != NULL );
D_DEBUG_AT( SaWMan_Draw, "%s( %p, %d,%d-%dx%d )\n", __FUNCTION__,
sawwin, DFB_RECTANGLE_VALS_FROM_REGION( region ) );
color = window->config.color;
/* Modify dst for stereo offset. */
offset = window->config.z;
offset *= right_eye ? -1 : 1;
dfb_rectangle_translate( &dst, offset, 0 );
/* Setup clipping region. */
clip = *region;
if (!dfb_region_rectangle_intersect( &clip, &dst ))
return;
/* Backup clipping region. */
old_clip = state->clip;
/* Use per pixel alpha blending. */
if (alpha_channel && (window->config.options & DWOP_ALPHACHANNEL))
flags |= DSDRAW_BLEND;
/* we assume the passed color is never premultiplied */
flags |= DSDRAW_SRC_PREMULTIPLY;
/* when not opaque, we simply adjust the color */
if (window->config.opacity != 0xFF) {
flags |= DSDRAW_BLEND;
color.a = (color.a * window->config.opacity) >> 8;
}
bool
dfb_unsafe_region_rectangle_intersect( DFBRegion *region,
const DFBRectangle *rect )
{
if (region->x1 > region->x2) {
int temp = region->x1;
region->x1 = region->x2;
region->x2 = temp;
}
if (region->y1 > region->y2) {
int temp = region->y1;
region->y1 = region->y2;
region->y2 = temp;
}
return dfb_region_rectangle_intersect( region, rect );
}
static bool
stretch_hvx( CardState *state, DFBRectangle *srect, DFBRectangle *drect )
{
GenefxState *gfxs;
const StretchFunctionTable *table;
StretchHVx stretch;
bool down = false;
void *dst;
void *src;
StretchCtx ctx;
int idx = STRETCH_NONE;
u32 colors[256];
D_ASSERT( state != NULL );
DFB_RECTANGLE_ASSERT( srect );
DFB_RECTANGLE_ASSERT( drect );
gfxs = state->gfxs;
if (srect->w > drect->w && srect->h > drect->h)
down = true;
if (down) {
if (!(state->render_options & DSRO_SMOOTH_DOWNSCALE))
return false;
}
else {
if (!(state->render_options & DSRO_SMOOTH_UPSCALE))
return false;
}
switch (gfxs->dst_format) {
case DSPF_NV12:
case DSPF_NV21:
return stretch_hvx_planar( state, srect, drect, down );
default:
break;
}
if (state->blittingflags & ~(DSBLIT_COLORKEY_PROTECT | DSBLIT_SRC_COLORKEY | DSBLIT_SRC_PREMULTIPLY))
return false;
if (state->blittingflags & DSBLIT_SRC_PREMULTIPLY && !DFB_PIXELFORMAT_IS_INDEXED( gfxs->src_format ))
return false;
if (DFB_PIXELFORMAT_INDEX(gfxs->dst_format) >= D_ARRAY_SIZE(stretch_tables))
return false;
if (DFB_PIXELFORMAT_INDEX(gfxs->src_format) >= D_ARRAY_SIZE((stretch_tables[0])->f))
return false;
table = stretch_tables[DFB_PIXELFORMAT_INDEX(gfxs->dst_format)];
if (!table)
return false;
if (state->blittingflags & DSBLIT_SRC_COLORKEY)
idx |= STRETCH_SRCKEY;
if (state->blittingflags & DSBLIT_COLORKEY_PROTECT)
idx |= STRETCH_PROTECT;
if (down)
stretch = table->f[DFB_PIXELFORMAT_INDEX(gfxs->src_format)].down[idx];
else
stretch = table->f[DFB_PIXELFORMAT_INDEX(gfxs->src_format)].up[idx];
if (!stretch)
return false;
ctx.clip = state->clip;
if (!dfb_region_rectangle_intersect( &ctx.clip, drect ))
return false;
dfb_region_translate( &ctx.clip, - drect->x, - drect->y );
if (DFB_PIXELFORMAT_IS_INDEXED( gfxs->src_format )) {
int i;
const DFBColor *entries;
u16 *colors16 = (void*) colors;
D_ASSERT( gfxs->Blut != NULL );
entries = gfxs->Blut->entries;
switch (gfxs->dst_format) {
case DSPF_ARGB:
if (state->blittingflags & DSBLIT_SRC_PREMULTIPLY) {
for (i=0; i<gfxs->Blut->num_entries; i++) {
int alpha = entries[i].a + 1;
switch (alpha) {
case 0:
colors[i] = 0;
break;
case 255:
colors[i] = PIXEL_ARGB( entries[i].a,
entries[i].r,
entries[i].g,
entries[i].b );
break;
default:
colors[i] = PIXEL_ARGB( entries[i].a,
(alpha * entries[i].r) >> 8,
(alpha * entries[i].g) >> 8,
(alpha * entries[i].b) >> 8 );
}
}
}
else {
for (i=0; i<gfxs->Blut->num_entries; i++)
colors[i] = PIXEL_ARGB( entries[i].a, entries[i].r, entries[i].g, entries[i].b );
}
break;
case DSPF_RGB32:
for (i=0; i<gfxs->Blut->num_entries; i++)
colors[i] = PIXEL_RGB32( entries[i].r, entries[i].g, entries[i].b );
break;
case DSPF_RGB16:
for (i=0; i<gfxs->Blut->num_entries; i++)
colors16[i] = PIXEL_RGB16( entries[i].r, entries[i].g, entries[i].b );
break;
case DSPF_ARGB4444:
if (state->blittingflags & DSBLIT_SRC_PREMULTIPLY) {
for (i=0; i<gfxs->Blut->num_entries; i++) {
int alpha = entries[i].a + 1;
switch (alpha) {
case 0:
colors16[i] = 0;
break;
case 255:
colors16[i] = PIXEL_ARGB4444( entries[i].a,
entries[i].r,
entries[i].g,
entries[i].b );
break;
default:
colors16[i] = PIXEL_ARGB4444( entries[i].a,
(alpha * entries[i].r) >> 8,
(alpha * entries[i].g) >> 8,
(alpha * entries[i].b) >> 8 );
}
}
}
else {
for (i=0; i<gfxs->Blut->num_entries; i++)
static bool
stretch_hvx_planar( CardState *state, DFBRectangle *srect, DFBRectangle *drect, bool down )
{
GenefxState *gfxs;
void *dst;
void *src;
DFBRegion clip;
D_ASSERT( state != NULL );
DFB_RECTANGLE_ASSERT( srect );
DFB_RECTANGLE_ASSERT( drect );
gfxs = state->gfxs;
if (state->blittingflags)
return false;
if (gfxs->dst_format != gfxs->src_format)
return false;
clip = state->clip;
if (!dfb_region_rectangle_intersect( &clip, drect ))
return false;
dfb_region_translate( &clip, - drect->x, - drect->y );
dst = gfxs->dst_org[0] + drect->y * gfxs->dst_pitch + DFB_BYTES_PER_LINE( gfxs->dst_format, drect->x );
src = gfxs->src_org[0] + srect->y * gfxs->src_pitch + DFB_BYTES_PER_LINE( gfxs->src_format, srect->x );
switch (gfxs->dst_format) {
case DSPF_NV12:
case DSPF_NV21:
if (down)
stretch_hvx_8_down( dst, gfxs->dst_pitch, src, gfxs->src_pitch,
srect->w, srect->h, drect->w, drect->h, &clip );
else
stretch_hvx_8_up( dst, gfxs->dst_pitch, src, gfxs->src_pitch,
srect->w, srect->h, drect->w, drect->h, &clip );
clip.x1 /= 2;
clip.x2 /= 2;
clip.y1 /= 2;
clip.y2 /= 2;
dst = gfxs->dst_org[1] + drect->y/2 * gfxs->dst_pitch + DFB_BYTES_PER_LINE( gfxs->dst_format, drect->x );
src = gfxs->src_org[1] + srect->y/2 * gfxs->src_pitch + DFB_BYTES_PER_LINE( gfxs->src_format, srect->x );
if (down)
stretch_hvx_88_down( dst, gfxs->dst_pitch, src, gfxs->src_pitch,
srect->w/2, srect->h, drect->w/2, drect->h, &clip );
else
stretch_hvx_88_up( dst, gfxs->dst_pitch, src, gfxs->src_pitch,
srect->w/2, srect->h, drect->w/2, drect->h, &clip );
break;
default:
break;
}
return true;
}
static void
draw_window( SaWManTier *tier,
SaWManWindow *sawwin,
SaWManWindow *sawwin2,
CardState *state,
DFBRegion *region,
bool alpha_channel,
bool right_eye )
{
SaWMan *sawman;
CoreWindow *window;
DFBSurfaceBlittingFlags flags = DSBLIT_NOFX;
DFBRectangle dst;
DFBRectangle src;
DFBRegion clip;
DFBRegion old_clip;
int offset;
D_MAGIC_ASSERT( sawwin, SaWManWindow );
D_MAGIC_ASSERT( state, CardState );
DFB_REGION_ASSERT( region );
sawman = sawwin->sawman;
window = sawwin->window;
dst = sawwin->dst;
src = sawwin->src;
D_MAGIC_ASSERT( sawman, SaWMan );
D_ASSERT( window != NULL );
D_ASSERT( window->surface != NULL );
D_DEBUG_AT( SaWMan_Draw, "%s( %p, %d,%d-%dx%d )\n", __FUNCTION__,
sawwin, DFB_RECTANGLE_VALS_FROM_REGION( region ) );
if (window->config.options & DWOP_STEREO_SIDE_BY_SIDE_HALF) {
src.x /= 2;
src.w /= 2;
if (right_eye)
src.x += window->surface->config.size.w / 2;
}
/* Modify dst for stereo offset. */
offset = window->config.z;
offset *= right_eye ? -1 : 1;
dfb_rectangle_translate( &dst, offset, 0 );
/* Setup clipping region. */
clip = *region;
if (!dfb_region_rectangle_intersect( &clip, &dst ))
return;
sawman_dispatch_blit( sawman, sawwin, right_eye, &sawwin->src, &dst, &clip );
if (sawwin2)
sawman_dispatch_blit( sawman, sawwin2, right_eye, &sawwin2->src, &dst, &clip );
/* Backup clipping region. */
old_clip = state->clip;
/* Use per pixel alpha blending. */
if (alpha_channel && (window->config.options & DWOP_ALPHACHANNEL))
flags |= DSBLIT_BLEND_ALPHACHANNEL;
/* Use global alpha blending. */
if (window->config.opacity != 0xFF) {
flags |= DSBLIT_BLEND_COLORALPHA;
if (window->surface->config.caps & DSCAPS_PREMULTIPLIED) {
/* Need to premultiply source with Ac? */
flags |= DSBLIT_SRC_PREMULTCOLOR;
dfb_state_set_src_blend( state, DSBF_ONE );
}
else
dfb_state_set_src_blend( state, DSBF_SRCALPHA );
/* Set opacity as blending factor. */
if (state->color.a != window->config.opacity) {
state->color.a = window->config.opacity;
state->modified |= SMF_COLOR;
}
}
/* if we specified some kind of color, we will colorise. no DWCAPS_COLOR here. */
if (window->config.color.a != 0) {
DFBColor c;
flags |= DSBLIT_COLORIZE;
c = window->config.color;
c.a = state->color.a;
if (! DFB_COLOR_EQUAL( c, state->color )) {
state->color = c;
state->modified |= SMF_COLOR;
}
}
/* Use source color keying. */
if (window->config.options & DWOP_COLORKEYING) {
flags |= DSBLIT_SRC_COLORKEY;
D_DEBUG_AT( SaWMan_Draw, " -> key 0x%08x\n", window->config.color_key );
/* Set window color key. */
dfb_state_set_src_colorkey( state, window->config.color_key );
}
/* Use automatic deinterlacing. */
if (window->surface->config.caps & DSCAPS_INTERLACED)
flags |= DSBLIT_DEINTERLACE;
/* Different compositing methods depending on destination format. */
if (flags & DSBLIT_BLEND_ALPHACHANNEL) {
if (DFB_PIXELFORMAT_HAS_ALPHA( state->destination->config.format )) {
/*
* Always use compliant Porter/Duff SRC_OVER,
* if the destination has an alpha channel.
*
* Cd = destination color (non-premultiplied)
* Ad = destination alpha
*
* Cs = source color (non-premultiplied)
* As = source alpha
*
* Ac = color alpha
*
* cd = Cd * Ad (premultiply destination)
* cs = Cs * As (premultiply source)
*
* The full equation to calculate resulting color and alpha (premultiplied):
*
* cx = cd * (1-As*Ac) + cs * Ac
* ax = Ad * (1-As*Ac) + As * Ac
*/
dfb_state_set_src_blend( state, DSBF_ONE );
/* Need to premultiply source with As*Ac or only with Ac? */
if (! (window->surface->config.caps & DSCAPS_PREMULTIPLIED))
flags |= DSBLIT_SRC_PREMULTIPLY;
else if (flags & DSBLIT_BLEND_COLORALPHA)
flags |= DSBLIT_SRC_PREMULTCOLOR;
/* Need to premultiply/demultiply destination? */
// if (! (state->destination->caps & DSCAPS_PREMULTIPLIED))
// flags |= DSBLIT_DST_PREMULTIPLY | DSBLIT_DEMULTIPLY;
}
else {
/*
* We can avoid DSBLIT_SRC_PREMULTIPLY for destinations without an alpha channel
* by using another blending function, which is more likely that it's accelerated
* than premultiplication at this point in time.
*
* This way the resulting alpha (ax) doesn't comply with SRC_OVER,
* but as the destination doesn't have an alpha channel it's no problem.
*
* As the destination's alpha value is always 1.0 there's no need for
* premultiplication. The resulting alpha value will also be 1.0 without
* exceptions, therefore no need for demultiplication.
*
* cx = Cd * (1-As*Ac) + Cs*As * Ac (still same effect as above)
* ax = Ad * (1-As*Ac) + As*As * Ac (wrong, but discarded anyways)
*/
if (window->surface->config.caps & DSCAPS_PREMULTIPLIED) {
/* Need to premultiply source with Ac? */
if (flags & DSBLIT_BLEND_COLORALPHA)
flags |= DSBLIT_SRC_PREMULTCOLOR;
dfb_state_set_src_blend( state, DSBF_ONE );
}
else
dfb_state_set_src_blend( state, DSBF_SRCALPHA );
}
}
/* Use color (key) protection if layer is keyed. */
if (tier->context->config.options & DLOP_SRC_COLORKEY) {
flags |= DSBLIT_COLORKEY_PROTECT;
dfb_state_set_colorkey( state, &tier->key );
}
/* Set blitting flags. */
dfb_state_set_blitting_flags( state, flags );
/* Set render options. */
if (sawman->scaling_mode == SWMSM_SMOOTH)
dfb_state_set_render_options( state, DSRO_SMOOTH_DOWNSCALE | DSRO_SMOOTH_UPSCALE );
else
dfb_state_set_render_options( state, DSRO_NONE );
/* Set blitting source. */
state->source = window->surface;
state->from_eye = (right_eye && (sawwin->caps & DWCAPS_STEREO)) ? DSSE_RIGHT : DSSE_LEFT;
state->modified |= SMF_SOURCE | SMF_FROM;
D_DEBUG_AT( SaWMan_Draw, " [][] %4d,%4d-%4dx%4d\n", DFB_RECTANGLE_VALS_FROM_REGION( &clip ) );
/* Change clipping region. */
dfb_state_set_clip( state, &clip );
D_DEBUG_AT( SaWMan_Draw, " => %4d,%4d-%4dx%4d <- %4d,%4d-%4dx%4d\n",
DFB_RECTANGLE_VALS( &dst ), DFB_RECTANGLE_VALS( &src ) );
#ifndef OLD_COREWINDOWS_STRUCTURE
if (sawwin2) {
CoreWindow *window2;
DFBRectangle *src2;
DFBPoint p1,p2,p;
D_MAGIC_ASSERT( sawwin2, SaWManWindow );
window2 = sawwin2->window;
D_ASSERT( window2 != NULL );
D_ASSERT( window2->surface != NULL );
src2 = &sawwin2->src;
state->source2 = window2->surface;
state->modified = SMF_SOURCE2;
p1.x = src2->x + (sawwin->dst.x - sawwin2->dst.x);
p1.y = src2->y + (sawwin->dst.y - sawwin2->dst.y);
p2.x = sawwin->dst.x;
p2.y = sawwin->dst.y;
p.x = p1.x;
p.y = p1.y;
p1.x = src.x;
p1.y = src.y;
src.x = p.x;
src.y = p.y;
CoreGraphicsStateClient_Blit2( state->client, &src, &p2, &p1, 1 );
}
else
#endif
{
/* Scale window to the screen clipped by the region being updated. */
CoreGraphicsStateClient_StretchBlit( state->client, &src, &dst, 1 );
}
/* Restore clipping region. */
dfb_state_set_clip( state, &old_clip );
}